Opinions on cap upgrade for Amp

I am seriously considering upgrading the capacitors in my VTL ST 150 amp. The DynamiCap and Auricap were the two I thought were the best on the market. I am looking for a cap that is musically natural and transparant, subltle liquidity but also detailed from top to bottom.
Any thoughts on these caps or any other recommendations?
Atma-Sphere uses REL teflon caps for their cap upgrade option. I get the impression that this cap was chosen after listening to much of the competition.
Search the archives as well - this question has been brought up before.